connect a modem to RB433 using MIniPCI--MiniPCIe

can it be done?
I can see all the led are working on the card , but it doesn’t recognize it

[admin@Router] > /system resource pci print 
 # DEVICE   VENDOR                        NAME                              IRQ
 0 00:14.2  unknown                       unknown (rev: 17)                  50
 1 00:14.0  unknown                       unknown (rev: 17)                  50

did someone here try this ?
I’m using V6.15

or I need to send to support?

Thanks ,